Moved to using GET and caching with SW

server/middlewares/methodOverride.js

@@ -0,0 +1,13 @@
+import queryString from 'query-string';
+
+export default function methodOverride(options) {
+  return async function methodOverrideMiddleware(ctx, next) {
+    if (ctx.method === 'POST') {
+      ctx.body = ctx.request.body;
+    } else {
+      ctx.method= 'POST';
+      ctx.body = queryString.parse(ctx.querystring);
+    }
+    return next();
+  }
+};